Sydney residents have been warned of poor air quality as a week-long heatwave across the state fires up.
NSW Health has issued an air pollution alert in Sydney on Tuesday because of a high ozone level, warning those with asthma and respiratory conditions to be on guard.
The city is expected to hit 31 degrees, while Penrith in the western suburbs is tipped to reach 37 degrees – before smashing 40 on Wednesday.
The smouldering heatwave will keep parts of the NSW central-west above 40 degrees every day this week, prompting a fire warning across the state.
Sydney residents who are sensitive to poor air quality should cut back on strenuous outdoor activities on Tuesday, NSW Health says.
The department’s Dr Ben Scalley said ozone levels would peak about 7pm, and tend to be lowest in the morning.
‘Those with respiratory diseases such as asthma should follow their action plan and use their relieving medication where necessary,’ the warning on the Bureau of Meteorology website says.
‘If respiratory symptoms worsen, they should seek medical advice.’
Sydney is also predicted to experience poor air quality on Wednesday.
Ozone pollution is caused by car exhaust and industrial fumes and gets worse on hot, still days.
The heatwave has prompted the Rural Fire Service (RFS) to warn of bush and grassfires in NSW, particularly on Wednesday.
‘There will be a very high fire danger in the Hunter, Sydney, through the Riverina and Central Western Plains and through most of the state,’ RFS Inspector Ben Shepherd said on Monday.
‘West of the Great Divide there has been considerable grass growth, given that we came out of the third-wettest winter on record … and that could act as tinder.
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